If GM would put the Duramax diesel in the Suburban/YukonXL, they would sell a gaggle of them I'm sure.
Ford has their head up their arse. They think the F150 takes the place of the Ranger, and the Expedition EL takes the place of the Excursion, and the Euro Transit van takes the place of the Econoline vans. That's a big H3LL NO!
Businesses aren't buying the Transit much. They're still buying the Econoline, while it's still available. Once the Econoline is gone, they'll be buying Chevy/GMC vans.
Businesses and private folks who want a small truck aren't buying the F150, they're buying the Tacoma. Ford gave away all those Ranger sales to Toyota. How lucky for Toyota.
And those who want a 3/4-ton large SUV with a big engine, well, you're SOL if you don't find a good used one.